Ball Bearings vs. Roller Bearings: Which One Does Your Application Actually Need?
Both ball bearings and roller bearings serve the same fundamental purpose: reducing friction, supporting loads,

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Discover the Precision and Reliability of Fafnir 2MM9517WI-DUM Angular Bearing Elevate your machinery’s performance with the Fafnir 2MM9517WI-DUM Angular Bearing, expertly crafted in the USA to meet your industrial automation and motion control needs. This new and open-box bearing is designed to ensure your operations run as smoothly and efficiently as possible. With specifications that include an 85 mm bore diameter, 130 mm outside diameter, and 24 mm width, this angular contact ball bearing provides an optimal fit for a range of mechanical applications. Sold in a convenient set of two pieces, it is perfect for power transmission setups requiring unmatched precision. As a trusted product from the renowned FAFNIR brand, this model, bearing number 2MM 9517 WI DUM, is known for its durability and exceptional performance. Whether you seek to upgrade existing machinery or assemble new equipment, you can rely on Fafnir to deliver high-quality performance. Enhance the efficiency and reliability of your engineering projects today with the Fafnir 2MM9517WI-DUM Angular Bearing–your ultimate choice for precision in motion control!
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| MFR / Brand | Fafnir |
|---|---|
| MPN | 2MM9517WIDUM |
| Model | 2MM 9517 WI DUM |
| Bearing Type | Angular Contact Ball Bearing, Open |
| ID | 85 mm |
| OD | 130 mm |
| Width | 24 mm |
| Advertise | 1 |
|---|---|
| Material | Bearing Steel |
| Min Temp | -30 °C |
| Cage Type | CR - Phenolic Outer Land Riding Cage |
| Dynamic Load Rating | 72 kN / 16186 lbf |
| Static Load Rating | 65 kN / 14612 lbf |
| Precision Rating | ABEC 7 / P4 |
| Series | 9500 WI |
| Rolling Elements | Ball |
| Max Temp | 120 °C |
| Condition | New – Open box |
| Item Weight | 4.50 lbs |
| Cage Material | Phenolic |
| Limiting Speed | 9000 rpm |
| Number Of Rows | 1 |
| Bore Type | Straight |
| Snap Ring Included | Without Snap Ring |
| Harmonization Code | 8482.10.50 |
| Contact Angle | 15° |
| Preload | Medium |
| Mounting Arrangement | Universal |
| Cross Reference 1 | FAG B7017-C-T-P4S-DUM |
|---|---|
| Cross Reference 2 | SKF 7017 CD/P4ADGB |
| Cross Reference 3 | NSK 7017CTYDUMP4 |
| Cross Reference 4 | RHP 7017ETDUMP4 |
| Cross Reference 5 | GMN S6017 C TA P4 D UM |
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